Bending-machine.



Vw.. KIEELY.` BENDING MAcH`|-E. APPLICATION FILED MAY 29, mi.

n.: mums uns m, Mmmm., uumncmn. n c

Patented Nov. 5,1918`.

' 'eitifzenfof the United States,

crimen,

WILLIAM KELY, orv lenAYiaunef, 'TEXAS'.

To .all 'whom z't may concern.'

YBeit knownv hat I, W `M Kemna residingA `at Grayburg, in the kcountyv of Hardin and AState of Texas, have Iinvented certain new andi useful Improvements infB'endingMai chines,1of which theffollowing is a specificadenotes a steam or tion. v

The machine lwhich is the subject matter of thepresent ap "lica'tion for patent, is designed for straightening railway rails, and

the ,obj ect *.of. therinvention; is'V4 to provideia 1 eiiicient and easily operated."flii'iit-sl;`4

simple, pressure actuated machine will be pointed out in the tion appearing hereinafter.

In order that the invention may be better understood, reference is had to the accompanying drawing, forming a part of this specication.

In the drawing- Figure 1 is a plan view and Fig. 2 is an end view of a fluid-pressure cylinder'.

Referring specically to the drawing, 10

other fluid pressure cylinder in which works a reciprocating piston 11 having a rod 12 which is connected to a cross head 13 slidably mounted on a guide rod 14. To the side of the cross head 13 is pivoted, as shown at 15, one end of a lever 16 having its other end fulcrumed, as shown at 17, to a rod 18 carried by a frame work to be presently described. To the lever 16, intermediate its ends, is pivotally connected, as shown at 19, a ram 20, having a head 21 which engages the work to be straightened. The machine is designed more particularly for straightening railway rails, although it is not limited to such, but may, with equal facility, be used for straightening bars, pipes, shafting, and other parts.

A fragment of the rail or other part to be straightened is shown at 22. This rail is laid alongside a former 23 consisting of a stout, straight beam or other 'abutment braced against timbers 24. The rail is laid so that the bend to kbe straightened out is opposite the ram head 21, and then fluid pressure is admitted to the cylinder 10 to advance the piston 11, whereupon the ram 20, through its connections with the piston, is advanced, and the head of the ram bends the rail straight in an obvious manner.

In order that the rail 22 may be easily of this kind as detailed descripof the machine,

Vthereto'in spaced relation..

' BnivniNG-ivincnnvn,

` Patented Nov.,5,`19`18. Application filed May 29, 1917. Serial No. 171,671.

shifted-in the direction of as leegte, it is supported on rollers 25 journaled in the beam 23 anda vbeam-.26 extendingparallel To an upright'l timber 27 atlthesideof the beam 26 is secureda guide 28y through which. the ram 20 passes, and. whichprevents the ram vfrom being deflected up .or down, the guide being bored tapered to allowthe sideswingof the ram accordingto the' swing of the lever 16. The connection between the leverv 16,andthe ro'dzlS isa/.slotted enel-'so thatt'he lever may swing freely when the piston 11 is moving.

IThe cylinder 10 is securely bolted to one side of a heavy timber 29, it having a anged base for this purpose as shown at 30. A rod 31 ties the beams 23 and 26 and one of the timbers 24 to the timber 29 and the rod 18 ties the parts 23 and 26 and one of the timbers 24. The timber 29 is a portion of the main supporting frame, and the frame which supports the rail to be straightened is securely tied and braced to said frame, the frame work being securely bound together to successfully withstand the thrust when the machine is in operation.

The guide 14 for the cross head 13 is secured at one end by a bearing 32 fastened to the side of the timber 29, and at the other end by a support 33 carried by the anged base 30 of the cylinder 10.

Steam or other iuid pressure is admitted to the cylinder through a valve chest 34 containing a suitable hand-controlled valve connected by a rod 35 to a hand lever 36 located at such a point on the frame work that the operator can watch the work.

The machine is simple, cheap, eiiicient and rapid. The ram can be instantly stopped at any point in the stroke, and the pressure to be applied to the rail straightened can be readily varied and controlled by admitting more or less iuid pressure to the cylinder. rllhe ram head will be shaped to suit the work to be straightened, and it is detachably connected to the ram so that it may be changed for one suited for the particular part to be straightened.

While the preferred embodiment of the machine has been shown, it will be understood that various changes and modifications in the. structural details thereof may be made without a departurefrom the spirit aiitd scope of the invention as claimed hereina er.

I claim- 1. A machine of the character described comprising a reciprocatory bending ram having a working head, a pair of parallel spaced beams, work-supporting means positioned between the beams, a guide on one of ythe beams through which the ram passes, a

lever fulcrumed at one end, actuating means for the lever connected to the other end thereof, a connection between the ram and the lever intermediate the ends of the latter, and a rigid tie rod connecting the aforesaid beams and projecting laterally from one of said beams, to which projecting end of the rod the lever is fulcrumed.

2. A machine of the character described comprising a reciprocatory bending ram, a fluid pressure cylinder, a piston in the cylinder, a sliding cross head connected to the Copies of this patent may be obtained for ve cents each, by addressing the piston, a lever fulcrumed at one end and having its other end connected to the cross head, and a connection between the ram and the lever intermediate the ends of the latter.

3. A machine of the character described, comprising a reciprocatory bending ram having a working head, a pair of parallel spaced beams, worlnsupporting means positioned between the beams, a guide on one of the beams through which the ram passes, a lever fulcrumed at one end, actuating means for the lever connected to the other end thereof, a connection between the ram and the lever intermediate the ends of the latter, and a rigid tie-rod projecting laterally from one of said beams, to which projecting end of the rod the lever is fulcrumed.

In testimony whereof I aflix my signature.

WILLIAM KEELY.

"Commissioner of Patents,

Washington, D. C. 

